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Re: Fix some x86 peepholes vs. the red-zone
- From: Bernd Schmidt <bschmidt at redhat dot com>
- To: Uros Bizjak <ubizjak at gmail dot com>, GCC Patches <gcc-patches at gcc dot gnu dot org>
- Date: Fri, 15 Apr 2016 15:36:19 +0200
- Subject: Re: Fix some x86 peepholes vs. the red-zone
- Authentication-results: sourceware.org; auth=none
- References: <570CE2B8 dot 7070303 at redhat dot com> <570CE67F dot 6090106 at redhat dot com> <CAFULd4acKMqdQsG7kW+77z_82QhLB4CJSDHzNCXP=ttFSSB8wQ at mail dot gmail dot com>
On 04/15/2016 10:32 AM, Uros Bizjak wrote:
This fixes possible wrong code with a tricky failure mode, so OK now.
Thanks.
[...]
While changing this part, it can be rewritten using dg-additional options, e.g.:
/* { dg-options "-Os -fomit-frame-pointer -fasynchronous-unwind-tables
-mno-red-zone" } */
/* { dg-additional-options "-mpreferred-stack-boundary=3" { target ia32 } } */
Since Jakub mentioned branching today, and I wasn't sure I'd have time
for a retest, I've committed it as-is.
Bernd